/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.engine.impl.cmd;

import java.io.Serializable;

import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
import org.activiti.engine.impl.persistence.entity.TaskEntity;
import org.activiti.engine.task.IdentityLinkType;


/**
 * @author 自定义添加，删除Execution
 */
public class DeleteExecutionCmd implements Command<Object>, Serializable {

  private static final long serialVersionUID = 1L;

  protected ExecutionEntity executionEntity;
  
  public DeleteExecutionCmd(ExecutionEntity executionEntity) {
    this.executionEntity = executionEntity;
    validateParams(executionEntity);
  }
  
  protected void validateParams(ExecutionEntity executionEntity) {
    if(executionEntity == null) {
      throw new ActivitiIllegalArgumentException("ExecutionEntity is null");
    }
    
  }
  
  public Void execute(CommandContext commandContext) {

    
    commandContext.getExecutionEntityManager().deleteExecution(executionEntity);
    
    return null;  
  }


}
